A popular excursion. The cave, known in the Aymará tongue as Chussek Uta (House of Owls), is approximately 500m deep with an enclosed lagoon which can be crossed in pedal boats (B$20). Guides with the necessary lamps will help you find your way around. PCMB, the Bolivian program to conserve bats, has identified three nectar- and insect-eating murciélagos in the pitch-black surroundings.
It’s a scenic 15km hike to the cave along a dirt road (two hours each way). Taxis will do the return trip for around B$30, including waiting time. The local community has also set up two simple albergues (basic accommodations) to overnight in. There are a total of four rooms with a single bed in each and prices are negotiable. Remember that all proceeds go to help the community, so be generous.
